Blowoff means for locomotive boilers



p 1943- o. B. $CHOENI,(Y ET AL I 2,329,947

BLOW-OFF MEANS FOR LOCOMOTIVE BOILERS Filed Dec. 22, 1941 2 Sheets-Sheet l 1N VENTGRJ ATTORNEYS Sept. 21, 1943. O. B. SCHOENKY T AL, 9,

BLOW-OFF MEANS FOR LOCOMOTIVE BOILERS Filed Dec. 22, 1941 2 Sheets-Sheet 2 H 2 7/ I wl L L, mu T n In A F 5 INVITORS I B, JQKr-bu, BY 44% 5 v G-v- ATTORNEY Patented S ept. 21,1943

I UNITED STAT nLowor'r MEANS r'on Loconorrvn r nonnns Otto Schoenky, South Pasadena, and Charles -Wesley Sturdevant, San Jose, Calif.

Application December 22,1941, Serial Not 423,866,

4 Claims.

rangement for the boilers of steam locomotives. The principal objects of the invention are to provide means for blowing of! sludge andwater from the bottom oi the boiler, and for dischargcondense upon the windows and exterior surfaces arrangement of pipes that will drain itself completely to prevent freezing, and to provide a device that can be quickly'and easily installed on existing locomotives;

Other objects and advantages of the invention Each of the discharge nozzles 2 9 is formedas willbe apparent from the following description,

without departing from the spirit of the inven tion.

Reference will be made to the accompanying drawings, wherein Fig. 1 is a side elevation of the rear portion of a locomotive, showing a preferred embodiment of our invention.

Fig. 2 is a transverse section taken on the line 4 'Fig. 3 is a side elevation, enlarged, of one of the discharge nozzles. V Fig. 4 is asection on the line 6-4 of Fig. 3.

Fig.6 is bottom view of the same. 4

In the-drawings, the reference numeral H, designates the leg oi'the boiler. at each side 014 which, near the bottom, is a blow-oi! valve fitting l2,'the valve of which is operated by a lever l3 and a rod II from a hand lever to in the cab of the, locomotive. It is contemplated that there will be two such levers l5. one'a't each side of the cab, for respectively operating the two valves i 2. From each blow-oil valve i2 a pipe or conduit it leads downwardly and forwardly, and is provided with an emergency shut-o1! valve I! and a union i8. Forwardly of the union It, the pipes 5 (01422-382) Q The present invention'relate to a blow-oi: ars end, shown as closed by a screw plug 2L; may be used as a connection for a drain or drains (not 'shown)j1'rom any boiler auxiliaries such as gauge glasses'etc. Thelower of the fitting lo Joins-a transverse. pipe, conduit or manifold 22, extending across the locomotive beneath-the boiler and secured to the bed frame" by straps. 24. The

ends of the manifold conduit 22 curve downward- 1y, as shown at 25, and are further supported by U-bolts 28 from. brackets 21 secured to andjex tending laterally from the bed'fram'e 23. Below the brackets 21, each end of the manifoldor con,-

' duit 22 divides'into-twoconduitbranches28 directed downwardly at about 45 degrees from the vertical, andeach pair of branches terminate in a discharge nozzle, mul'ller or spreader 29 pcsitioned a few inches outwardly from the side of the trailer truck .30 and far enough abovethe top 2 of the rail to clear any auxiliary track structures. shown in'Figs. 3, a and 5, withan inner cylindrical tubularmember 3|. preferably welded to manifold branches or conduits 2B. Apertures 32 in the upperportion of said tube register with said branches, and horizontal baflles 33 are placed within the tube beneath said apertures. The lower portion of the tube has two parallel rows of holes 34 and 35, the holes '34 being directed outwardly at, an angle of about :30 degrees from thevertical. and the holes 35 being 1 directed inwardlyatan angle of about degrees from the vertical. c

The tubular member 3|. issurrounded by an outer shell comprising an outerplate 36 welded to the top of the tube andextending vertically welded to the top of the tube and extending on a down from the side thereof, and an inner plate 31 about level with the'bottom of the tube, then being bent toward the outer plate atan angle of about 40 degrees from the horizontal, as shown, at

39. The bottom edges of the plates 36 and 31 are.

spaced apart to form a horizontal rectangular discharge opening, about 2 inches wide and 24 inches long, the full length of the spreader. The

.' ends of both the tubeil and the shell are closed by plates 4|. welded in place.

The pipes and fittings constituting thedescribed conduits are so proportioned that there is a progressive increase in area from the blow-oil valves I! to the discharge apertures 40., For example, for use with the 24 inch spreaders herein, described, the pipes It will be one inch in diameter, 56 the Junction fitting I! will be 2% inches, and the,

manifold 22 and branches 28 will be 2% inches. The combined area of the holes 34 and 35 in each spreader will be greater than the combined area of the two branches 2!, and the area of the discharge aperture 40 will be greater than the combined area of the holes ii and 35. Therefore, there is a progressive decrease in pressure and velocity as the sludge, water and steam pass through the pipes, until they emerge from the discharge apertures 40 at practically atmospheric pressure and with very low velocity. Hence the discharge produces little noise, and is not destructive to the ballast and any auxiliary track structures that it may strike, and does not form a cloud of mist to blow back and be deposited on the windows and exterior surfaces of the cars.

The bailles 33, the inclined shell portion 39 so baffle and direct the issuing stream as to cause it to fall harmlessly upon the right of way in a band about a foot or a foot and a half wide, parallel to the rail and several inches beyond the ends of the ties, so that rails, ties, signal wires, and like track structures and appurtenances are not affected by the sludge and water.

The described conduit pipes and fittings are so placed that there are no pockets in which water may be trapped and freeze in cold weather. The pipes it are sloped downwardly from the blowoif valves I! to the central junction fitting i9, and the manifold 22 slopes downwardly fromsaid fitting I9 in bothdirections to the Spreaders 29.

holes 34 and as, and the Either blow-off valve l2 may be operated alone,

or both may be operated simultaneously. In

either case, the discharge is evenly divided atthe junction fitting l9, and escapes from the spreaders at both sides simultaneously;

We claim: I

1. In a blow-off mechanism for locomotive boilers wherein a valve controlled conduit communicates' with and is disposed adjacent the bottom of the boiler and a discharge'nozzle communlcably connected with said conduit is disposed in a horizontal plane below said valve, the improvement consisting of said discharge nozzle comprising a horizontally disposed elongated tubular member substantially closed at its opposite 'ends and communicably connected at its upper surface with said conduit for receivin blow-off material therefrom, said member further having a plurality of longitudinally spaced apertures at its lower surface, and a shell'surroundin said member and having an outlet positioned for discharging said material downwardly at a point disposed laterally outwardly of the locomotive wheels.

2. In a blow-off mechanism for locomotive boilers wherein a valve controlledconduit communicates with and is disposed adjacent the bottom of the boiler communicatin with a manifold extending transversely beneath, the boiler, and a discharge nozzleis comrnunicably connected with lower surface for discharging said material downwardly therefrom, and a shell open at its bottom enclosing said tubular member, the walls of said shell constituting a baiiie for material discharged thereagainst from said tubular member and in turn discharging such material through the open bottom end of said shell at greatly reduced pressure.

3. In a blow-off mechanism for locomotive boilers wherein a valve controlled conduit communicates with and is disposed adjacent the bottom of the boiler communicating with a manifold extending transversely beneath the boiler, and a discharge nozzle is communicably connected with one end of said manifold; the improvement consisting of providing discharge nozzles at opposite ends of the manifold and disposed laterally outwardly of the locomotive wheels, each .of said discharge nozzles comprising a horizontally disposed elongated tubular member cominunicably connected at its upper surface with an end of said manifold for receiving blow-off material including sludge therefrom, each of said nozzles further having a plurality of longitudinally spaced apertures at its lower surface for discharging said material downwardly therefrom, and a shell enclosing said tubular member, said shell having one vertical side and an opposite side sloping inwardly toward said vertical side, the opposite sides of saidshell being spaced part and constituting baffles for respectively receiving the impact of and conducting and discharging the blow-oil material through an elongated aperture therebetween at a materially reduced Pressure.

4. In a blow-off mechanism for locomotive boilers wherein a valve controlled conduit communicates with and is disposed adjacent the bottom of the boiler communicating with a manifold extending transversely beneath the boiler, and a discharge nozzle is communicably connected with one end of said manifold: the improvement consisting of providing discharge nozzles at opposite ends of the manifold and disposed laterally outwardly of the locomotive wheels, each of said discharge nozzles comprising a horizontally disposed elongated tubular muiiler member comone end of said manifold; the improvement consisting of providing discharge nozzles at opposite ends of the manifold disposed laterally outwardly of the locomotive wheels,'each of said discharge nozzles comprising a horizontally disposed elongated tubular member communicably connected at its upper surface with an end of said manifold for receiving blow-oil material including sludge therefrom, each of said nozzles further having a plurality of longitudinally spaced apertures at its municably connected at longitudinally spaced portions of its upper surface withan end of said manifold for receiving blow-off material including sludge therefrom, each of said nozzles further having a plurality of longitudinally spaced apertures at its lower surface for discharging said material downwardly therefrom, longitudinally spaced horizontal baiile plates disposed in said mufller adjacent the spaced localities of communication with said manifold for receiving and breaking up the force of impact of the blow-off material admitted to the muffler from said manifold, and a shell enclosing said tubular muffler, said shell having a vertical side and an opposite side sloping inwardly toward said vertical side, the opposite sides of said shell being spaced apart and constituting battles for respectively receiving the impact of and conducting and discharging the blow-off material received from said muiller member through an elongated aperture disposed between the lower portions of the described vertical and sloping sides of said shell at a materially reduced pressure.

OTTO B. SCHOENKY. CHARLES WESLEY STURDEVAN'I. 

